Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/001—Softening compositions
  • C11D3/0015—Softening compositions liquid
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/62—Quaternary ammonium compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/835—Mixtures of non-ionic with cationic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2003—Alcohols; Phenols
  • C11D3/2006—Monohydric alcohols
  • C11D3/201—Monohydric alcohols linear
  • C11D3/2013—Monohydric alcohols linear fatty or with at least 8 carbon atoms in the alkyl chain
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2093—Esters; Carbonates
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/667—Neutral esters, e.g. sorbitan esters
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

• compositions comprising glycerol esters and a fabric softening active. Methods of using such compositions are also disclosed.
• Fabric softening active in a fabric care composition may deliver softness and static control to treated fabrics, as well as delivering perfume to give a freshness benefit.
• existing fabric softening actives and fabric care compositions may suffer from a variety of disadvantages.
• Fabric softening actives are typically very hydrophobic and must be converted from a melt into an aqueous dispersion that is pourable, disperses in rinse water, and deposits on fabric.
• biodegradable fabric softening actives may suffer from chemical and physical instability, which requires formulation at a very narrow pH range. Consequently, fabric softening actives are often difficult to process and difficult to formulate into stable fabric softening compositions.
• polyhydric alcohol esters in fabric care compositions to address one or more of the needs discussed above is known. It has been discovered, however, that certain polyhydric alcohol esters, namely glycerol esters, may provide additional benefits, such as better fabric feel. It has also been discovered that additional benefits may be achieved by adding a mixture of glycerol esters directly to fabric softener active and then combining the mixture of glycerol esters and softener active with water. Furthermore, direct addition of glycerol esters to the fabric softening active eliminates a step in the process by eliminating the need to emulsify glycerol ester, e.g., with a non-ionic surfactant and cetyl-trimethyl ammonium chloride.
• the present invention attempts to solve one more of the needs described above by providing, in one aspect of the invention, a method of making a fabric care composition comprising the steps of:
• each R is independently selected from the group consisting of fatty acid ester moieties comprising carbon chains having a carbon chain length of from about 10 to about 22 carbon atoms; -OH; and combinations thereof;
• a material selected from a delivery enhancing agent, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dispersant, or a combination thereof to form the fabric care composition.
• Another aspect of the invention provides a method of making a fabric care composition comprising the steps of:
• each R is independently selected from the group consisting of fatty acid ester moieties comprising carbon chains having a carbon chain length of from about 10 to about 22 carbon atoms; -OH; and combinations thereof;
• a material selected from a delivery enhancing agent, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dispersant, or a combination thereof to form the fabric care composition.
• Another aspect of the invention provides a method of making a fabric care composition comprising the steps of:
• each R is independently selected from the group consisting of fatty acid ester moieties comprising carbon chains having a carbon chain length of from about 10 to about 22 carbon atoms; -OH; and combinations thereof; b. simultaneously combining the fabric softening active melt and the glycerol ester melt with water to form an aqueous mixture; and
• aqueous mixture with a material selected from a delivery enhancing agent, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dispersant, or a combination thereof to form the fabric care composition.
• a material selected from a delivery enhancing agent, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dispersant, or a combination thereof to form the fabric care composition.
• Still other aspects of the invention include methods of using fabric care compositions made according to the method described above and treating fabric with these fabric care compositions.
• FIG. 1 details the apparatus 100 used in the method of the present invention.
• FIG. 2 details the orifice component 5 of the apparatus used in the method of the present invention.
• Glycerol esters may also be referred to as glycerides or glyceryl esters.
• a glycerol monester is the same as a monoglyceride and a monoacylglycerol.
• a glycerol diester is the same as a diglyceride or a diacylglycerol.
• a glycerol triester is the same as a triglyceride or a triacylglycerol.
• glycol monoester as used herein includes both isomers of glycerol monester and the term “glycerol diester” includes both isomers of glycerol diester.
• a glycerol monester molecule contains only one fatty acid residue and exists in two isomeric forms:
• a glycerol diester contains two fatty acid residues and exists in two isomeric forms: 1 ,2-diglyceride
• component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.
• the methods of making fabric care compositions which comprise glycerol ester and a fabric softening active (FSA), described herein generally comprise the steps of: mixing a fabric softener active with a mixture of glycerol esters to form a first mixture; combining the first mixture with water and, optionally, a salt to form a second mixture; combining the second mixture with a material selected from a delivery enhancing agent, e.g., cationic polymer, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dispersant, ora combination thereof to form the liquid fabric care composition.
• a delivery enhancing agent e.g., cationic polymer, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dis
• the glycerol ester mixture and the FSA may each be melted prior to mixing, such that a glycerol ester melt and a FSA melt are mixed to form a first mixture (glycerol ester/FSA co-melt).
• the glycerol ester mixture and the FSA may each be provided as a solid component, e.g., pellets, mixed, and then melted to form a first mixture (glycerol ester/FSA co- melt).
• the glycerol ester mixture may be melted to form a glycerol ester melt, the FSA may be melted to form a FSA melt, and the two melts may be simultaneously combined with water to form an aqueous mixture.
• the salt When combining the glycerol ester melt and the FSA melt or the first mixture (glycerol ester/FSA co-melt) with water and, optionally, salt, the salt is typically dissolved in the water and the water is at a temperature of about 5°C to about 100°C, alternatively about 5°C to about 80°C, alternatively 80°C to about 100°C, typically about 100°C.
• the salt may be selected from calcium chloride and sodium chloride.
• Water may be added to the glycerol ester melt and the FSA melt, simultaneously, to form an aqueous mixture or water may be added to the first mixture to form a second mixture.
• the glycerol ester melt and the FSA melt may be simultaneously added to water to form an aqueous mixture or the first mixture may be added to water to form a second mixture.
• the salt may be added separate from the water.
• This mixture of glycerol ester, FSA, optionally, salt, andwater is then typically further processed before combining it with a material selected from a delivery enhancing agent, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dispersant or a combination thereof to form the liquid fabric care composition.
• a material selected from a delivery enhancing agent, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, a dispersant or a combination thereof is milling.
• a molten organic premix of a fabric softener active, a mixture of glycerol ester, and, optionally, other organic materials, except cationic polymer and preferably not perfume is prepared and dispersed into a water seat comprising water at about 80-100° C.
• High shear milling e.g., milling at 2000-6000 rpm, for 30 seconds to 5 minutes, is conducted at a temperature of about 80-100° C.
• the dispersion may optionally be fed through a dynamic orifice by a pipe (or other such conduit) under feed pressure.
• the dynamic orifice comprises a valve, wherein the valve can be changed from a fixed first position to a fixed second position all the while feeding the composition through the dynamic orifice.
• Adjusting the valve (and thus the opening) can quickly and predictably accommodate changes in manufacturing operating conditions.
• the dynamic orifice and the use thereof are further described in the publication of U.S. Patent Application No. 12/779,098.
• the dispersion is then cooled to ambient temperature.
• the composition may be further milled after cooling to control viscosity and particle size of the dispersion.
• perfume is added at ambient temperature, less than about 35°C.
• a material selected from a delivery enhancing agent e.g., a cationic polymer, an antifoam agent, a chelant, a preservative, a structurant, a silicone, a phase stabilizing polymer, a perfume, a perfume microcapsule, dispersant, or a combination thereof is added to the dispersion after the dispersion has been cooled to ambient temperatures, e.g., less than 35° C.
• the cationic polymer is preferably added after ingredients such as perfumes, and silicones may be added before or after cationic polymers.
• Cavitation refers to the process of forming vapor bubbles in a liquid. This can be done in a number of manners, such as through the use of a swiftly moving solid body (as an impeller), hydrodynamically, or by high-frequency sound waves. When the bubbles collapse further downstream from the forming location, they release a certain amount of energy, which can be utilized for making chemical or physical transformations.
• liquid whistle One particular method for producing hydrodynamic cavitation uses an apparatus known as a liquid whistle.
• Liquid whistles are described in Chapter 12 "Techniques of Emulsification” of a book entitled Emulsions - Theory and Practice, 3rd Ed., Paul Becher, American Chemical Society and Oxford University Press, NY, NY, 2001.
• An example of a liquid whistle is a SONOLATOR® high pressure homogenizer, which is manufactured by Sonic Corp. of Stratford, CT, U.S.A.
• liquid whistles Processes using liquid whistles have been used for many years.
• the apparatuses have been used as in-line systems, single or multi-feed, to instantly create fine, uniform and stable emulsions, dispersions, and blends in the chemical, personal care, pharmaceutical, and food and beverage industries.
• Liquids enter the liquid whistle under very high operating pressures, in some cases up to 1000 bar.
• operating pressure it is understood to mean the pressure of the liquid(s) as it enters the liquid whistle device. This ensures efficient mixing of the liquids within the apparatus.
• Such operating pressures may be achieved by using, for example, a Sonolator® High Pressure Homogenizer.
• a liquid fabric softening composition comprising a fabric softening active and a mixture of glycerol esters may be made using a process comprising the steps of: taking an apparatus 100 ( Figure 1, Figure 2) comprising at least a first inlet 1A and a second inlet IB; a pre-mixing chamber 2, the pre-mixing chamber 2 having an upstream end 3 and a downstream end 4, the upstream end 3 of the pre-mixing chamber 2 being in liquid communication with the first inlet 1A and the second inlet IB; an orifice component 5, the orifice component 5 having an upstream end 6 and a downstream end 7, the upstream end of the orifice component 6 being in liquid communication with the downstream end 4 of the pre-mixing chamber 2, wherein the orifice component 5 is configured to spray liquid in a jet and
• the liquid fabric softening active/glycerol ester composition comprises a fabric softening active, as described below, a glycerol ester mixture, as described below, and, optionally, a solvent.
• the glycerol ester mixture is thereby added to the FSA before the FSA is hydrated, e.g., mixed with the second liquid composition.
• the liquid fabric softening active/glycerol ester composition is introduced into the apparatus 100 through the first inlet 1A.
• the fabric softening active is present at a concentration between 15% and 95% by weight of the fabric softening active/glycerol ester composition, preferably between 20% and 60% by weight of the fabric softening active/glycerol ester composition, more preferably between 30% and 55% by weight of the fabric softening active/ composition.
• the glycerol ester mixture is present at a concentration between about 15% and 95% by weight of the fabric softening active/glycerol ester composition, preferably between 20% and 60% by weight of the fabric softening active/glycerol ester composition, more preferably between 30% and 55% by weight of the fabric softening active/ composition.
• the solvent is selected from ethanol or isopropanol.
• the solvent may optionally contain a diluent such as propylene glycol, ethylene glycol, glycerol, naturally derived oils, e.g., tallow fat, coconut oil. In some embodiments, there is no solvent or diluent.
• the liquid fabric softening active/glycerol ester composition is added in a molten form.
• the liquid fabric softening active/glycerol ester composition is preferably heated to a temperature between 70°C and 90°C in order to make it molten.
• the second liquid composition comprises water (hence, it hydrates the liquid fabric softening active/glycerol ester composition when the liquid fabric softening active/glycerol ester and the second liquid composition pass through the apparatus 100 at the desired flow rate) and may comprise any of the general types of materials that appear in liquid fabric softening compositions known in the art.
• the second liquid composition may comprise salt, e.g., NaCl, CaCl 2 , silicone compounds, perfumes, encapsulated perfumes, dispersing agents, stabilizers, pH control agents, colorants, brighteners, dyes, odor control agent, pro-perfumes, cyclodextrin, solvents, soil release polymers, preservatives, antimicrobial agents, chlorine scavengers, anti- shrinkage agents, fabric crisping agents, spotting agents, anti-oxidants, anti-corrosion agents, bodying agents, drape and form control agents, smoothness agents, static control agents, wrinkle control agents, sanitization agents, disinfecting agents, germ control agents, mold control agents, mildew control agents, antiviral agents, anti-microbials, drying agents, stain resistance agents, soil release agents, malodor control agents, fabric refreshing agents, chlorine bleach odor control agents, dye fixatives, dye transfer inhibitors, color maintenance agents, color restoration/rejuvenation agents, anti-fading agents, whiteness enhancer
• the second liquid composition comprises silicone compounds.
• the second liquid composition may also be heated or unheated. In one embodiment, the temperature of the second liquid composition is between 40°C and 70°C.
• the pH of the second liquid composition should be adjusted such that the final resultant liquid fabric softening composition has the desired pH. The pH may be adjusted using a mineral acid such as hydrochloric acid or formic acid.
• the second liquid composition is introduced into the apparatus 100 through the second inlet IB. The process described above is further discussed in the U.S. Patent Application claiming the benefit of Provisional Application No. 61/294533.
• a method of making a fabric care composition which comprises a fabric softening active and glycerol esters.
• Liquid fabric care compositions e.g., fabric softening compositions (such as those contained in DOWNY or LENOR), comprise a fabric softening active.
• One class of fabric softener actives includes cationic surfactants.
• Liquid fabric softeners may be described as a concentrated polydispersion of particles made of cationic surfactant. The particles are spherical vesicles of cationic surfactant. The vesicles may act as carriers for perfumes.
• Imperfections in processing conditions and in softener active compositions can result in incomplete and/or undesirable vesicle formation, e.g., larger than desired vesicles or lamellar sheets. It is believed that these undesirable structures may contribute to high initial rheology, rheology growth with age
• a composition prepared by this method comprises a dispersed gel network phase comprising a cationic surfactant and a glycerol ester.
• gel network refers to a lamellar or vesicular semi-crystalline phase that comprises at least one surfactant and at least one fatty amphiphile and solvent.
• the lamellar or vesicular phase comprises bi-layers made up of a first layer comprised of cationic surfactant and a fatty amphiphile, such as glycerol ester, alternating with a second layer comprising the solvent (eg water).
• the co-actives must be dispersed in solvent.
• Solid crystalline refers to the structure of the lamellar or vesicular phase which forms at a temperature below the chain melt temperature of the cationic surfactant and glycerol ester. The chain melt temperature may be measured by Differential Scanning Calorimetry (DSC).
• the gel network structures the fabric softening composition by providing the desired rheology or viscosity, and thickening the composition.
• the composition is physically stable at zero-shear and has shear thinning properties that enable the composition to be dispensed by pouring from a bottle or cap or dispensing in a washing machine.
• This structuring of the composition by inducing a semi-crystalline lamellar phase may be accomplished without the use of a polymeric structuring agent, thereby simplifying the formulation.
• Polymer structuring agents may, however, be used in addition to the gel network.
• Gel Networks are further described by G.M. Ecceleston, "Functions of Mixed Emulsifiers and Emulsifying Waxes in Dermatological Lotions and Creams", Colloids and Surfaces A:
• cationic surfactants include quaternary ammonium compounds.
• exemplary quaternary ammonium compounds include alkylated quaternary ammonium compounds, ring or cyclic quaternary ammonium compounds, aromatic quaternary ammonium compounds, diquaternary ammonium compounds, alkoxylated quaternary ammonium compounds, amidoamine quaternary ammonium compounds, ester quaternary ammonium compounds, and mixtures thereof.
• a final fabric softening composition (suitable for retail sale) will comprise from about 1.5% to about 50%, alternatively from about 1.5% to about 30%, alternatively from about 3% to about 25%, alternatively from about 3 to about 15%, of fabric softening active by weight of the final composition.
• the fabric softening composition is a so called rinse added composition.
• the composition is substantially free of detersive surfactants, alternatively substantially free of anionic surfactants.
• the pH of the fabric softening composition is acidic, for example between about pH 2 and about pH 5, alternatively between about pH 2 to about pH 4, alternatively between about pH 2 and about pH 3. The pH may be adjusted with the use of hydrochloric acid or formic acid.
• the fabric softening active is DEEDMAC (e.g., ditallowoyl ethanolester dimethyl ammonium chloride).
• DEEDMAC means mono and di-fatty acid ethanol ester dimethyl ammonium quaternaries, the reaction products of straight chain fatty acids, methyl esters and/or triglycerides (e.g., from animal and/or vegetable fats and oils such as tallow, palm oil and the like) and methyl diethanol amine to form the mono and di-ester compounds followed by quaternization with an alkylating agent.
• methyl esters and/or triglycerides e.g., from animal and/or vegetable fats and oils such as tallow, palm oil and the like
• the fabric softener active is a bis-(2-hydroxyethyl)-dimethylammonium chloride fatty acid ester having an average chain length of the fatty acid moieties of from 16 to 20 carbon atoms, preferably 16 to 18 carbon atoms, and an Iodine Value (IV), calculated for the free fatty acid, of from 15 to 25, alternatively from 18 to 22, alternatively from about 19 to about 21, alternatively combinations thereof.
• the Iodine Value is the amount of iodine in grams consumed by the reaction of the double bonds of 100 g of fatty acid, determined by the method of ISO 3961.
• the fabric softening active comprises a compound of formula (I):
• R and R2 is each independently a C15-C1 , and wherein the C15-C17 is unsaturated or saturated, branched or linear, substituted or unsubstituted.
• the fabric softening active comprises a bis-(2-hydroxypropyl)- dimethylammonium methylsulphate fatty acid ester having a molar ratio of fatty acid moieties to amine moieties of from 1.85 to 1.99, an average chain length of the fatty acid moieties of from 16 to 18 carbon atoms and an iodine value of the fatty acid moieties, calculated for the free fatty acid, of from 0.5 to 60.
• This fabric softening active is further described in the publication of U.S. Patent Application No. 12/752,220.
• the fabric softening active comprises, as the principal active, compounds of the formula
• each R substituent is either hydrogen, a short chain C ⁇ -Cg, preferably C1-C3 alkyl or hydroxyalkyl group, e.g., methyl, ethyl, propyl, hydroxyethyl, and the like, poly (C2-3 alkoxy), preferably polyethoxy, benzyl, or mixtures thereof; each m is 2 or 3; each n is from 1 to about 4, preferably 2; each Y is -0-(0)C-, -C(0)-0-, -NR-C(O)-, or -C(0)-NR-; the sum of carbons in each R1, plus one when Y is -0-(0)C- or -NR-C(O) -, is Ci2"C22 > preferably Ci4-C20 > with each RI being a hydrocarbyl, or substituted hydrocar
• the fabric softening active has the general formula:
• each R is a methyl or ethyl group and preferably each R ⁇ is in the range of C15 to C19.
• the diester when specified, it can include the monoester that is present.
• DEQA (2) is the "propyl" ester quaternary ammonium fabric softener active having the formula l,2-di(acyloxy)-3-trimethylammoniopropane chloride.
• the fabric softening active has the formula:
• the fabric softening active has the formula:
• each R, R ⁇ , and A have the definitions given above; each R ⁇ is a C ⁇ .g alkylene group, preferably an ethylene group; and G is an oxygen atom or an -NR- group;
• the fabric softening active has the formula:
• R1 , R ⁇ and G are defined as above.
• the fabric softening active is a condensation reaction product of fatty acids with dialkylenetriamines in, e.g., a molecular ratio of about 2: 1, said reaction products containing compounds of the formula:
• R1 , R ⁇ are defined as above, and each R ⁇ is a C ⁇ .g alkylene group, preferably an ethylene group and wherein the reaction products may optionally be quatemized by the additional of an alkylating agent such as dimethyl sulfate.
• an alkylating agent such as dimethyl sulfate.
• the preferred fabric softening active has the formula:
• the fabric softening active is a reaction product of fatty acid with hydroxyalkylalkylenediamines in a molecular ratio of about 2: 1 , said reaction products containing compounds of the formula:
• the fabric softening active has the formula:
• Non-limiting examples of compound (1) are N,N-bis(stearoyl-oxy-ethyl) N,N-dimethyl ammonium chloride, N,N-bis(tallowoyl-oxy-ethyl) ⁇ , ⁇ -dimethyl ammonium chloride, N,N- bis(stearoyl-oxy-ethyl) N-(2 hydroxyethyl) N-methyl ammonium methylsulfate.
• Non-limiting examples of compound (2) is 1,2 di (stearoyl-oxy) 3 trimethyl ammoniumpropane chloride.
• Non-limiting examples of Compound (3) are dialkylenedimethylammonium salts such as dicanoladimethylammonium chloride, di(hard)tallowdimethylammonium chloride dicanoladimethylammonium methylsulfate,.
• An example of commercially available dialkylenedimethylammonium salts usable in the present invention is dioleyldimethylammonium chloride available from the Evonik Corporation under the trade name Adogen® 472 and dihardtallow dimethylammonium chloride available from Akzo Nobel Arquad 2HT75.
• a non- limiting example of Compound (4) is 1 -methyl- l-stearoylamidoethyl-2- stearoylimidazolinium methylsulfate wherein Ri is an acyclic aliphatic C15-C1 hydrocarbon group, R2 is an ethylene group, G is a NH group, R ⁇ is a methyl group and A " is a methyl sulfate anion, available commercially from the Witco Corporation under the trade name Varisoft®.
• Compound (5) is l-tallowylamidoethyl-2-tallowylimidazoline wherein Ri is an acyclic aliphatic C15-C17 hydrocarbon group, R2 is an ethylene group, and G is a NH group.
• a non-limiting example of Compound (6) is the reaction products of fatty acids with diethylenetriamine in a molecular ratio of about 2: 1, said reaction product mixture containing N,N"-dialkyldiethylenetriamine with the formula:
• R!-C(O) is an alkyl group of a commercially available fatty acid derived from a vegetable or animal source, such as Emersol® 223LL or Emersol® 7021, available from Henkel Corporation, and R ⁇ and R ⁇ are divalent ethylene groups.
• Compound (7) is a difatty amidoamine based softener having the formula:
• Compound (8) is the reaction products of fatty acids with N-2- hydroxyethylethylenediamine in a molecular ratio of about 2: 1 , said reaction product mixture containing a compound of the formula:
• Compound (9) is the diquaternary compound having the formula:
• R1 is derived from fatty acid, and the compound is available from Witco Company.
• the anion A " which is any softener compatible anion, provides electrical neutrality.
• the anion used to provide electrical neutrality in these salts is from a strong acid, especially a halide, such as chloride, bromide, or iodide.
• a halide such as chloride, bromide, or iodide.
• other anions can be used, such as methylsulfate, ethylsulfate, acetate, formate, sulfate, carbonate, and the like.
• Chloride and methylsulfate are preferred herein as anion A.
• the anion can also, but less preferably, carry a double charge in which case A " represents half a group.
• a method of making a fabric care composition which comprises a fabric softening active and a mixture glycerol esters.
• the mixture of glycerol esters contains glycerol diester, glycerol monoester, and glycerol triester in a weight ratio of about 4:6 to about 99.9:0.1 glycerol diester to glycerol mono- and triester.
• the ratio of glycerol diester to glycerol mono- and triester is about 4:6 to about 8:2, alternatively about 6:4 to about 9: 1, alternatively 7:3 to about 99.9:0.1.
• the glycerol ester component is not a mixture and comprises pure diglyceride.
• the synthetic methods used to produce glycerol esters generally yield a mixture of products - glycerol, glycerol monoester, glycerol diester, and glycerol triester.
• mixtures of glycerol esters comprising an increased concentration of glycerol diester, e.g., at least about 40% have improved properties, for example, softening, formulation viscosity, biodegradability, or performance of delivery of a perfume benefit.
• glycerol monoesters which are more soluble in water than glycerol diesters, tend to be washed away rather than deposit on fabric, in a wash or rinse cycle.
• glycerol triesters which are highly hydrophobic and insoluble in water, tend to be difficult to emulsify and formulate and are less effective than glycerol diesters in regard to fabric softening.
• Glycerol diesters are less likely to wash away in a wash or rinse cycle and can easily be emulsified and formulated into a product for fabric softening. Without being bound to theory, it is believed that the hydroxyl groups of glycerol diester molecules hydrogen bond and assemble on fabric, thereby providing improved softening to the fabric.
• Glycerol esters may be obtained by a number of known synthetic methods, including an esterification reaction and a glycerolysis reaction, which are described below. The reactions are performed under the production conditions known in the art.
• An acidic catalyst may be used in the esterification reaction. Acidic catalysts include sulfuric acid, hydrochloric acid, and p- toluenesulfonic acid. Esterification may also take place without a catalyst.
• R is as defined above.
• the molar ratio of glycerol to fatty acid may be selected in such a manner that the reaction yields an increased concentration of glycerol diester, versus glycerol, glycerol monoester, and glycerol triester.
• a mole ratio of 33% glycerol and 67% stearic acid will statistically yield a mixture of glycerol, glycerol monostearate, glycerol distearate, and glycerol tristearate at a weight percent ratio of 0.5%:12.5%:44.2%:42.8%.
• polyhydric alcohols may also be used in the esterification reaction to yield various polyhydric alcohol esters.
• erythritol, pentaerythritol, sorbitol, or sorbitan may be used.
• These polyhydric alcohols may be used either alone or in the form of a mixture of at least two of them.
• fatty acids to be used in the above method examples include capric acid, lauric acid, myristic acid, palmitic acid, oleic acid, stearic acid, isostearic acid, arachidic acid and behenic acid; and fatty acids obtained from unhardened or hardened animal fats (for example, beef tallow and lard), palm oil, rapeseed oil and fish oil. These fatty acids may be used either alone or in the form of a mixture of at least two of them.
• R is as defined above.
• glycerol triester, glycerol diester, and/or glycerol monoester is reacted with glycerol.
• Various basic catalysts may be used in the glycerolysis/transesterification reaction, including NaOH, KOH, NaOCH 3 , KOCH 3 or the like. Acid catalysts may also be used.
• the molar ratio of the reactants in the glycerolysis/transesterification reaction may be selected in such a manner that the reaction yields an increased concentration of glycerol diester, versus glycerol, glycerol monoester, and glycerol triester.
• other fatty acid esters and other polyhydric alcohols may be used to yield various polyhydric alcohol esters.
• examples of other polyhydric alcohols are also described above the esterification reaction.
• Other synthetic methods for making glycerol esters are known, including an interesterification reaction. Additional synthetic methods used to produce glycerol esters and other polyhydric alcohol esters are disclosed in US Pat. No. 5,498,350, which is hereby incorporated by reference.
• glycerol diester versus glycerol, glycerol monoester, and glycerol triester.
• the molar ratio of the reactants in the above-described reactions may be selected in such a manner that the reaction yields an increased concentration of glycerol diester, versus glycerol, glycerol monoester, and glycerol triester.
• a diglyceride-enriched product may be produced via distillation, crystallization, solvent extraction, or chromatography of reaction products. Specialized catalysts, e.g., lipase, may also be used to produce a diglyceride-enriched product.
• a diglyceride- enriched product may be produced through careful control of reaction conditions, e.g., temperature, mole ratio, time, mixing conditions, and the use of parallel processes such as distillation, in any of the synthesis methods used to produce glycerol ester.
• the fabric softening composition may comprise, based on total weight of the composition, from about 2% to about 50%, or from about 4% to about 40%, or from about 4% to about 30% of a mixture of glycerol esters.
• compositions may include additional components.
• additional components The following is a non-limiting list of suitable additional components.
• compositions may comprise a "delivery enhancing agent.”
• delivery enhancing agent refers to any polymer or combination of polymers that significantly enhance the deposition of the fabric care benefit agent onto the fabric during laundering.
• the fabric treatment composition may comprise from about 0.01% to about 10%, from about 0.05 to about 5%, or from about 0.15 to about 3% of a deposition aid. Suitable deposition aids are disclosed in, for example, the US publication of patent application serial number 12/080,358.
• the net charge of the delivery enhancing agent is preferably positive in order to overcome the repulsion between the fabric care benefit agent and the fabric since most fabrics are comprised of textile fibers that have a slightly negative charge in aqueous environments.
• fibers exhibiting a slightly negative charge in water include but are not limited to cotton, rayon, silk, wool, etc.
• the delivery enhancing agent is a cationic or amphoteric polymer.
• the amphoteric polymers of the present invention will also have a net cationic charge, i.e. the total cationic charges on these polymers will exceed the total anionic charge.
• the cationic charge density of the polymer ranges from about 0.05 milliequivalents/g to about 23 milliequivalents/g.
• the charge density is calculated by dividing the number of net charge per repeating unit by the molecular weight of the repeating unit. In one embodiment, the charge density varies from about 0.05 milliequivants/g to about 8 milliequivalents/g.
• the positive charges could be on the backbone of the polymers or the side chains of polymers.
• Nonlimiting examples of deposition enhancing agents are cationic or amphoteric
• Cationic polysaccharides include but not limited to cationic cellulose derivatives, cationic guar gum derivatives, chitosan and derivatives and cationic starches.
• Cationic polysacchrides have a molecular weight from about 50,000 to about 2 million, preferably from about 100,000 to about 1,500,000.
• R , R , R are each independently H, Ci -24 alkyl (linear or branched),
• Rx is H, Ci -24 alkyl (linear or branched) or or mixtures thereof, wherein Z is a water soluble anion, preferably chloride, bromide iodide, hydroxide, phosphate sulfate, methyl sulfate and acetate;
• R 5 is selected from H, or Ci-C 6 alkyl or mixtures thereof;
• R 7 , R 8 and R 9 are selected from H, or Ci-C 2 8 alkyl, benzyl or substituted benzyl or mixtures thereof
• R 4 is H or -(P) m -H , or mixtures thereof; wherein P is a repeat unit of an addition polymer formed by a cationic monomer.
• the cationic monomer is selected from
• methacrylamidotrimethylammonium chl diallyl ammonium having the formula:
• Z' is a water-soluble anion, preferably chloride, bromide iodide, hydroxide, phosphate sulfate, methyl sulfate and acetate or mixtures thereof and m is from about 1 to about 100.
• Alkyl substitution on the saccharide rings of the polymer ranges from about 0.01% to 5% per sugar unit, more preferably from about 0.05% to 2% per glucose unit, of the polymeric material.
• Preferred cationic polysaccahides include cationic hydroxyalkyl celluloses.
• Examples of cationic hydroxyalkyl cellulose include those with the INCI name PolyquaterniumlO such as those sold under the trade names Ucare Polymer JR 30M, JR 400, JR 125, LR 400 and LK 400 polymers; Polyquaternium 67 sold under the trade name Softcat SKTM, all of which are marketed byAmerchol Corporation Edgewater NJ; and Polyquaternium 4 sold under the trade name Celquat H200 and Celquat L-200 available from National Starch and Chemical Company, Bridgewater, NJ.
• Other preferred polysaccharides include hydroxyethyl cellulose or
• hydoxypropylcellulose quaternized with glycidyl C12-C22 alkyl dimethyl ammonium chloride.
• polysaccahrides include the polymers with the INCI names Polyquaternium 24 sold under the trade name Quaternium LM 200, PG-Hydroxyethylcellulose Lauryldimonium Chloride sold under the trade name Crodacel LM, PG-Hydroxyethylcellulose Cocodimonium Chloride sold under the trade name Crodacel QM and , PG-Hydroxyethylcellulose
• stearyldimonium Chloride sold under the trade name Crodacel QS and alkyldimethylammonium hydroxypropyl oxyethyl cellulose.
• the cationic polymer comprises cationic starch. These are described by D. B. Solarek in Modified Starches, Properties and Uses published by CRC Press (1986) and in U.S. Pat. No. 7,135,451, col. 2, line 33 - col. 4, line 67.
• the cationic starch of the present invention comprises amylose at a level of from about 0% to about 70% by weight of the cationic starch.
• said cationic starch comprises from about 25% to about 30% amylose, by weight of the cationic starch.
• the remaining polymer in the above embodiments comprises amylopectin.
• a third group of preferred polysaccahrides are cationic galactomanans, such as cationic guar gums or cationic locust bean gum.
• cationic guar gum is a quaternary ammonium derivative of Hydroxypropyl Guar sold under the trade name Jaguar C13 and Jaguar Excel available from Rhodia, Inc of Cranburry NJ and N-Hance by Aqualon, Wilmington, DE. b. Synthetic Cationic Polymers
• Cationic polymers in general and their method of manufacture are known in the literature. For example, a detailed description of cationic polymers can be found in an article by M. Fred Hoover that was published in the Journal of Macromolecular Science-Chemistry, A4(6), pp 1327-1417, October, 1970. The entire disclosure of the Hoover article is incorporated herein by reference.
• Other suitable cationic polymers are those used as retention aids in the manufacture of paper. They are described in "Pulp and Paper, Chemistry and Chemical Technology Volume III edited by James Casey (1981). The Molecular weight of these polymers is in the range of 2000-5 million.
• the synthetic cationic polymers of this invention will be better understood when read in light of the Hoover article and the Casey book, the present disclosure and the Examples herein. i. Addition Polymers
• Synthetic polymers include but are not limited to synthetic addition polymers of the general structure
• linear polymer units are formed from linearly polymerizing monomers.
• Linearly polymerizing monomers are defined herein as monomers which under standard polymerizing conditions result in a linear or branched polymer chain or alternatively which linearly propagate polymerization.
• the linearly polymerizing monomers of the present invention have the formula:
• linear monomer units are introduced indirectly, inter alia, vinyl amine units, vinyl alcohol units, and not by way of linearly polymerizing monomers.
• vinyl acetate monomers once incorporated into the backbone are hydrolyzed to form vinyl alcohol units.
• linear polymer units may be directly introduced, i.e. via linearly polymerizing units, or indirectly, i.e. via a precursor as in the case of vinyl alcohol cited herein above.
• Each R 1 is independently hydrogen, C1-C12 alkyl, substituted or unsubstituted phenyl, substituted or unsubstituted benzyl, -OR a, or -C(0)OR a wherein R a is selected from hydrogen, and C1-C24 alkyl and mixtures thereof.
• R 1 is hydrogen, C1-C4 alkyl, or -OR a , or - C(0)OR a
• Each R 2 is independently hydrogen, hydroxyl, halogen, C1-C12 alkyl, -OR a> substituted or unsubstituted phenyl, substituted or unsubstituted benzyl, carbocyclic, heterocyclic, and mixtures thereof.
• Preferred R 2 is hydrogen, C1-C4 alkyl, and mixtures thereof.
• Each Z is independently hydrogen, halogen; linear or branched C1-C30 alkyl, nitrilo, N(R 3 ) 2 -C(0)N(R 3 ) 2 ; -NHCHO (formamide);
• X is a water soluble anion; the index n is from 1 to 6.
• R5 is independently hydrogen, Ci-C 6 alkyl,
• Z can also be selected from non-aromatic nitrogen heterocycle comprising a quaternary ammonium ion, heterocycle comprising an N-oxide moiety, an aromatic nitrogen containing heterocyclic wherein one or more or the nitrogen atoms is quaternized; an aromatic nitrogen containing heterocycle wherein at least one nitrogen is an N-oxide; or mixtures thereof.
• Non- limiting examples of addition polymerizing monomers comprising a heterocyclic Z unit includes l-vinyl-2-pyrrolidinone, 1-vinylimidazole, quaternized vinyl imidazole, 2-vinyl-l,3-dioxolane, 4- vinyl-l-cyclohexenel,2-epoxide, and 2-vinylpyridine, 2-vinylpyridine N-oxide, 4-vinylpyridine 4-vinylpyridine N-oxide.
• a non-limiting example of a Z unit which can be made to form a cationic charge in situ is the - NHCHO unit, formamide.
• the formulator can prepare a polymer or co-polymer comprising formamide units some of which are subsequently hydrolyzed to form vinyl amine equivalents.
• the polymers and co-polymers of the present invention comprise Z units which have a cationic charge or which result in a unit which forms a cationic charge in situ.
• the co-polymers of the present invention comprise more than one Z unit, for example, Z 1 , Z 2 ,...Z n units, at least about 1 % of the monomers which comprise the co-polymers will comprise a cationic unit.
• the polymers or co-polymers of the present invention can comprise one or more cyclic polymer units which are derived from cyclically polymerizing monomers.
• Cyclically polymerizing monomers are defined herein as monomers which under standard polymerizing conditions result in a cyclic polymer residue as well as serving to linearly propagate polymerization.
• Preferred cyclically polymerizing monomers of the present invention have the formula: - wherein each R 4 is independently an olefin comprising unit which is capable of propagating polymerization in addition to forming a cyclic residue with an adjacent R 4 unit; R 5 is C1-C12 linear or branched alkyl, benzyl, substituted benzyl, and mixtures thereof; X is a water soluble anion.
• R 4 units include allyl and alkyl substituted allyl units.
• the resulting cyclic residue is a six-member ring comprising a quaternary nitrogen atom.
• R 5 is preferably C 1 -C 4 alkyl, preferably methyl.
• cyclically polymerizing monomer is dimethyl diallyl ammonium having the formula:
• index z is from about 10 to about 50,000.
• Nonlimiting examples of preferred polymers according to the present invention include copolymers made from one or more cationic monomers selected from the group consisting a) ⁇ , ⁇ -dialkylaminoalkyl methacrylate, ⁇ , ⁇ -dialkylaminoalkyl acrylate, N,N-dialkylaminoalkyl acrylamide, ⁇ , ⁇ -dialkylaminoalkylmethacrylamide , quatemized N,N-dialkylaminoalkyl methacrylate, quatemized N,N-dialkylaminoalkyl acrylate, quatemized N,N-dialkylaminoalkyl acrylamide, quatemized N,N-dialkylaminoalkylmethacrylamide
• a second monomer selected from a group consisting of acrylamide, N,N-dialkyl acrylamide, methacrylamide, ⁇ , ⁇ -dialkylmethacrylamide, C1-C12 alkyl acrylate, C1-C12 hydroxyalkyl acrylate, polyalkylene glyol acrylate, C1-C12 alkyl methacrylate, C1-C12 hydroxyalkyl methacrylate, , polyalkylene glycol methacrylate, vinyl acetate, vinyl alcohol, vinyl formamide, vinyl acetamide, vinyl alkyl ether, vinyl pyridine, vinyl pyrrolidone, vinyl imidazole and derivatives, acrylic acid, methacrylic acid, maleic acid, vinyl sulfonic acid, styrene sulfonic acid, acrylamidopropylmethane sul
• Preferred cationic monomers include ⁇ , ⁇ -dimethyl aminoethyl acrylate, N,N-dimethyl aminoethyl methacrylate (DMAM), [2-(methacryloylamino)ethyl]tri-methylammonium chloride (QDMAM), ⁇ , ⁇ -dimethylaminopropyl acrylamide (DMAPA), N,N-dimethylaminopropyl methacrylamide (DMAPMA), acrylamidopropyl trimethyl ammonium chloride,
• M APT AC methacrylamidopropyl trimethylammonium chloride
• quaternized vinyl imidazole quaternized vinyl imidazole and diallyldimethylammonium chloride and derivatives thereof.
• Preferred second monomers include acrylamide, ⁇ , ⁇ -dimethyl acrylamide, C1-C4 alkyl acrylate, C1-C4 hydroxyalkylacrylate, vinyl formamide, vinyl acetate, and vinyl alcohol.
• Most preferred nonionic monomers are acrylamide, hydroxyethyl acrylate (HEA), hydroxypropyl acrylate and derivative thereof,
• the most preferred synthetic polymers are poly(acrylamide-co-diallyldimethylammonium chloride), poly(acrylamide-methacrylamidopropyltrimethyl ammonium chloride),
• the polyethylene derivative is an amide derivative of polyetheyleneimine sold under the trade name Lupoasol SK. Also included are alkoxylated polyethleneimine; alkyl polyethyleneimine and quaternized polyethyleneimine.
• PAE resins are condensation products of polyalkylenepolyamine with polycarboxyic acid. The most common PAE resins are the condensation products of diethylenetriamine with adipic acid followed by a subsequent reaction with epichlorohydrin. They are available from Hercules Inc. of Wilmington DE under the trade name Kymene or from BASF A.G. under the trade name Luresin. These polymers are described in Wet Strength resins and their applications edited by L. L. Chan, TAPPI Press(1994).
• the deposition assisting polymer has a charge density of about 0.01 to about 23.0 milliequivalents/g (meq/g) of dry polymer, preferably about 0.05 to about 8 meq/g.
• charge density depends on the pH of the carrier. For these polymers, charge density is measured at a pH of 7.
• the weight-average molecular weight of the polymer will generally be between 10,000 and 5,000,000, preferably from 100,000 to 2,000,000 and even more preferably from 200,000 and 1,500,000, as determined by size exclusion chromatography relative to polyethyleneoxide standards with RI detection.
• the mobile phase used is a solution of 20% methanol in 0.4M MEA, 0.1 M NaN0 3 , 3% acetic acid on a Waters Linear Ultrahdyrogel column, 2 in series. Columns and detectors are kept at 40°C. Flow is set to 0.5 mL/min.
• the delivery enhancing agent may comprise at least one polymer formed from the polymerisation of a) a water soluble ethylenically unsaturated monomer or blend of monomers comprising at least one cationic monomer and at least one non-ionic monomer; wherein the cationic monomer is a compound according to formula (I):
• Ri is chosen from hydrogen or methyl, preferably hydrogen
• R 2 is chosen hydrogen, or Ci - C 4 alkyl, preferably hydrogen
• R3 is chosen Ci - C 4 alkylene, preferably ethylene;
• R4, R5, and R 6 are each independently chosen from hydrogen, or Ci - C 4 alkyl, preferably methyl;
• X is chosen from -0-, or -NH-, preferably -0-;
• Y is chosen from CI, Br, I, hydrogensulfate, or methosulfate, preferably CI. wherein the non-ionic monomer is a compound of formula (II)
• R7 is chosen from hydrogen or methyl, preferably hydrogen
• Rg is chosen from hydrogen or Ci - C 4 alkyl, preferably hydrogen
• R9 and Rio are each independently chosen from hydrogen or Ci - C 4 alkyl, preferably methyl, b) at least one cross-linking agent in an amount from 0.5 ppm to 1000 ppm by the weight of component a), and c) at least one chain transfer agent in the amount of greater than 10 ppm relative to component a), preferably from 1200 ppm to 10,000 ppm, more preferably from 1,500 ppm to 3,000 ppm (as described in the U.S. Patent Application claiming the benefit of
• silicone preferably refers to emulsified and/or microemulsified silicones, including those that are commercially available and those that are emulsified and/or
• microemulsified in the composition unless otherwise described.
• the silicone is a polydialkylsilicone, alternatively a polydimethyl silicone (polydimethyl siloxane or "PDMS"), or a derivative thereof.
• the silicone is chosen from an aminofunctional silicone, alkyloxylated silicone, ethoxylated silicone, propoxylated silicone, ethoxylated/propoxylated silicone, quaternary silicone, or combinations thereof.
• Levels of silicone in the fabric care composition may include from about 0.01% to about 20%, alternatively from about 0.1% to about 10%, alternatively from about 0.25% to about 5%, alternatively from about 0.4% to about 3%, alternatively from about 1% to about 5%, alternatively from about 1% to about 4%, alternatively from about 2% to about 3%, by weight of the fabric care composition.
• silicones that are useful in the present invention are: non- volatile silicone fluids such as polydimethyl siloxane gums and fluids; volatile silicone fluid which can be a cyclic silicone fluid of the formula [(03 ⁇ 4)2 SiO] n where n ranges between about 3 to about 7, preferably about 5, or a linear silicone polymer fluid having the formula (Cl3 ⁇ 4)3 SiO[(CH 3 ) 2 SiO] m Si(C]3 ⁇ 4)3 where m can be 0 or greater and has an average value such that the viscosity at 25° C. of the silicone fluid is preferably about 5 centistokes or less.
• non- volatile silicone fluids such as polydimethyl siloxane gums and fluids
• volatile silicone fluid which can be a cyclic silicone fluid of the formula [(03 ⁇ 4)2 SiO] n where n ranges between about 3 to about 7, preferably about 5, or a linear silicone polymer fluid having the formula (Cl3 ⁇ 4)3 SiO[(CH 3 ) 2 SiO]
• silicone One type of silicone that may be useful in the composition of the present invention is polyalkyl silicone with the following structure:
• the alkyl groups substituted on the siloxane chain (R) or at the ends of the siloxane chains (A) can have any structure as long as the resulting silicones remain fluid at room temperature.
• Each R group preferably is alkyl, hydroxy, or hydroxyalkyl group, and mixtures thereof, having less than about 8, preferably less than about 6 carbon atoms, more preferably, each R group is methyl, ethyl, propyl, hydroxy group, and mixtures thereof. Most preferably, each R group is methyl.
• Aryl, alkylaryl and/or arylalkyl groups are not preferred.
• Each A group which blocks the ends of the silicone chain is hydrogen, methyl, methoxy, ethoxy, hydroxy, propoxy, and mixtures thereof, preferably methyl, q is preferably an integer from about 7 to about 8,000.
• silicones include polydimethyl siloxanes and preferably those polydimethyl siloxanes having a viscosity of from about 10 to about 1000,000 centistokes at 25° C. Mixtures of volatile silicones and non-volatile polydimethyl siloxanes are also preferred.
• the silicones are hydrophobic, non-irritating, non-toxic, and not otherwise harmful when applied to fabric or when they come in contact with human skin. Further, the silicones are compatible with other components of the composition are chemically stable under normal use and storage conditions and are capable of being deposited on fabric.
• silicone materials which may be used correspond to the formulas:
• G is selected from the group consisting of hydrogen, OH, and/or Ci -C5 alkyl; a denotes
• n+m is a number from 1 to about 2,000;
• R 1 is a monovalent radical of formula CpH 2p L in which p is an integer from 2 to 4 and L is selected from the group consisting of:
• each R 2 is chosen from the group consisting of hydrogen, a Ci -C5 saturated hydrocarbon radical, and each A " denotes compatible anion, e.g., a halide ion;
• R 3 denotes a long chain alkyl group
• c) f denotes an integer of at least about 2.
• silicone material may include those of the following formula:
• the silicone is an organosiloxane polymer.
• Non-limiting examples of such silicones include U.S. Pat. Nos: 6,815,069; 7,153,924; 7,321,019; 7,427, 648.
• the silicone material can be provided as a moiety or a part of a non-silicone molecule.
• examples of such materials are copolymers containing silicone moieties, typically present as block and/or graft copolymers. Further examples of such materials are disclosed in the U.S. Patent Application claiming the benefit of Provisional Application No. 61/320133 and the U.S. Patent Application claiming the benefit of Provisional Application No. 61/320141.
• perfumes One aspect of the invention provides for fabric care compositions comprising a perfume.
• the term "perfume" is used to indicate any odoriferous material that is subsequently released into the aqueous bath and/or onto fabrics contacted therewith.
• the perfume will most often be liquid at ambient temperatures.
• a wide variety of chemicals are known for perfume uses, including materials such as aldehydes, ketones, and esters. More commonly, naturally occurring plant and animal oils and exudates comprising complex mixtures of various chemical components are known for use as perfumes.
• the perfumes herein can be relatively simple in their compositions or can comprise highly sophisticated complex mixtures of natural and synthetic chemical components, all chosen to provide any desired odor.
• perfumes are described, for example, in US 2005/0202990 Al, from paragraphs 47 to 81.
• neat perfumes are disclosed in US Pat Nos: 5,500,138; 5,500,154; 6,491,728; 5,500,137 and 5,780,404.
• Perfume fixatives and/or perfume carrier materials may also be included.
• US 2005/0202990 Al from paragraphs 82 - 139.
• Suitable perfume delivery systems, methods of making certain perfume delivery systems and the uses of such perfume delivery systems are disclosed in USPA 2007/0275866 Al.
• the fabric care composition comprises from about 0.01% to about 5%, alternatively from about 0.5% to about 3%, or from about 0.5% to about 2%, or from about 1% to about 2% neat perfume by weight of the fabric care composition.
• the compositions of the present invention comprises perfume oil
• perfume microcapsule PMC
• friable PMC a perfume microcapsule
• Suitable perfume microcapsules may include those described in the following references: US 2003-215417 Al;
• the perfume microcapsule comprises a friable microcapsule.
• the shell comprising an aminoplast copolymer, esp. melamine-formaldehyde or urea- formaldehyde or cross-linked melamine formaldehyde or the like. Capsules may be obtained from Appleton Papers Inc., of Appleton, Wisconsin USA.
• Formaldehyde scavengers may also be used.
• compositions may optionally contain from about 0.01% to about 10%, or from about 2% to about 7%, or from about 3% to about 5%, by weight the composition, of a fatty acid, wherein, in one aspect, the fatty acid may comprise from about 8 to about 20 carbon atoms.
• the fatty acid may comprise from about 1 to about 10 ethylene oxide units in the hydrocarbon chain.
• Suitable fatty acids may be saturated and/or unsaturated and can be obtained from natural sources such a plant or animal esters (e.g., palm kernel oil, palm oil, coconut oil, babassu oil, safflower oil, tall oil, castor oil, tallow and fish oils, grease, or mixtures thereof), or synthetically prepared (e.g., via the oxidation of petroleum or by hydrogenation of carbon monoxide via the Fisher Tropsch process).
• suitable saturated fatty acids for use in the compositions include capric, lauric, myristic, palmitic, stearic, arachidic and behenic acid.
• Suitable unsaturated fatty acid species include: palmitoleic, oleic, linoleic, linolenic and ricinoleic acid.
• fatty acids are saturated C12 fatty acid, saturated C12-C14 fatty acids, and saturated or unsaturated C12 to CI 8 fatty acids, and mixtures thereof.
• compositions may contain from about 0.1%, to about 10%, by weight of dispersants.
• Suitable water-soluble organic materials are the homo- or co-polymeric acids or their salts, in which the polycarboxylic acid may contain at least two carboxyl radicals separated from each other by not more than two carbon atoms.
• the dispersants may also be alkoxylated derivatives of polyamines, and/or quaternized derivatives thereof such as those described in US 4,597,898, 4,676,921, 4,891,160, 4,659,802 and 4,661,288.
• the dispersants may also be materials according to Formula (I):
• Ri is C6 to C22 alkyl, branched or unbranched, alternatively C12 to CI 8 alkyl, branched or unbranched.
• R 2 is nil, methyl, or -(CH 2 CH 2 0) y , wherein y is from 2 to 20. When R2 is nil, the Nitrogen will be protonated.
• x is also from 2 to 20.
• Z is a suitable anionic counterion, preferably selected from the group consisting of chloride, bromide, methylsulfate, ethylsulfate, sulfate, and nitrate, more preferably chloride or methyl sulfate.
• the dispersant is according to Formula (II):
• x is from 2 to 20, and wherein Ri is C6 to C22 alkyl, branched or unbranched, preferably C 12 to CI 8 alkyl, branched or unbranched, and wherein n is 1 or 2.
• Ri is C6 to C22 alkyl, branched or unbranched, preferably C 12 to CI 8 alkyl, branched or unbranched, and wherein n is 1 or 2.
• Z is a suitable anionic counterion, preferably selected from the group consisting of chloride, bromide, methylsulfate, ethylsulfate, sulfate, and nitrate, more preferably chloride or methyl sulfate.
• n is 1, there is no anion present under acidic conditions.
• An example of such a material is alkyl polyglycol ether ammonium methylchloride sold under the product name, for example, Berol 648 from Akzo Nobel.
• the dispersant is one according to Formula (III): Formula (III)
• x and y are each independently selection from 2 to 20 , and wherein Ri is C6 to C22 alkyl, branched or unbranched, preferably unbranched.
• Ri is C6 to C22 alkyl, branched or unbranched, preferably unbranched.
• X + Y is from 2 to 40, preferably from 10 to 20.
• Z is a suitable anionic counterion, preferably chloride or methyl sulfate.
• An example of such a material is cocoalkylmethyl ethoxylated ammonium chloride sold under the product name, for example, ETHOQUAD C 25 from Akzo Nobel.
• Another aspect of the invention provides for a method of making a perfumed fabric care composition
• a method of making a perfumed fabric care composition comprising the step of adding the concentrated perfume composition of the present invention to a composition comprising one or more fabric softening actives, wherein preferably the composition comprising the fabric softening active is free or substantially free of a perfume.
• the concentrated perfume composition is combined with the composition comprising fabric softening active(s) such that the final fabric softener composition comprises at least 1.5%, alternatively at least 1.7%, or 1.9%, or 2%, or 2.1%, or 2.3%, or 2.5%, or 2.7% or 3%, or from 1.5% to 3.5 %, or combinations thereof, of concentrated perfume composition by weight of the final fabric softener composition.
• the perfumed fabric care composition comprises a weight ratio of perfume to amphiphile of at least 3 to 1, alternatively 4:1, or 5:1, or 6: 1, or 7: 1, or 8:1, or 9:1, or 10: 1, alternatively not greater than 100:1, respectively.
• compositions of the present invention may contain a structurant or structuring agent. Suitable levels of this component are in the range from about 0.01% to 10%, preferably from 0.01% to 5%, and even more preferably from 0.01% to 3% by weight of the composition.
• the structurant serves to stabilize silicone polymers and perfume microcapsules in the inventive compositions and to prevent it from coagulating and/or creaming. This is especially important when the inventive compositions have fluid form, as in the case of liquid or the gel-form fabric enhancer compositions.
• Structurants suitable for use herein can be selected from gums and other similar polysaccharides, for example gellan gum, carrageenan gum, xanthan gum, Diutan gum (ex. CP Kelco) and other known types of structurants such as Rheovis CDE (ex. BASF), Alcogum L-520 (ex. Alco Chemical) , and Sepigel 305 (ex. SEPPIC).
• gums and other similar polysaccharides for example gellan gum, carrageenan gum, xanthan gum, Diutan gum (ex. CP Kelco) and other known types of structurants such as Rheovis CDE (ex. BASF), Alcogum L-520 (ex. Alco Chemical) , and Sepigel 305 (ex. SEPPIC).
• One preferred structurant is a crystalline, hydroxyl-containing stabilizing agent, more preferably still, a trihydroxystearin, hydrogenated oil or a derivative thereof.
• the crystalline, hydroxyl-containing stabilizing agent is a nonlimiting example of a "thread-like structuring system” ("thread-like structuring systems" are described in detail in Solomon, M. J. and Spicer, P. T., "Microstructural Regimes of Colloidal Rod Suspensions, Gels, and Glasses," Soft Matter (2010)).
• "Thread-like Structuring System” as used herein means a system comprising one or more agents that are capable of providing a physical network that reduces the tendency of materials with which they are combined to coalesce and/or phase split. Examples of the one or more agents include crystalline, hydroxyl-containing stabilizing agents and/or hydrogenated jojoba.
• the thread-like structuring system forms a fibrous or entangled threadlike network.
• the thread-like structuring system has an average aspect ratio of from 1.5:1, preferably from at least 10: 1, to 200:1.
• the thread-like structuring system can be made to have a viscosity of 0.002 m 2 /s (2,000 centistokes at 20 °C) or less at an intermediate shear range (5 s "1 to 50 s "1 ) which allows for the pouring of the fabric enhancer composition out of a standard bottle, while the low shear viscosity of the product at 0.1 s "1 can be at least 0.002 m 2 /s (2,000 centistokes at 20 °C) but more preferably greater than 0.02 m 2 /s (20,000 centistokes at 20 °C).
• a process for the preparation of a thread-like structuring system is disclosed in WO 02/18528.
• compositions are uncharged, neutral polysaccharides, gums, celluloses, and polymers like polyvinyl alcohol, poly aery lamides, polyacrylates and co-polymers, and the like.
• Dye Transfer Inhibiting Agents are uncharged, neutral polysaccharides, gums, celluloses, and polymers like polyvinyl alcohol, poly aery lamides, polyacrylates and co-polymers, and the like.
• compositions may also include from about 0.0001%, from about 0.01%, from about 0.05% by weight of the compositions to about 10%, about 2%, or even about 1% by weight of the compositions of one or more dye transfer inhibiting agents such as polyvinylpyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N- vinylimidazole, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
• dye transfer inhibiting agents such as polyvinylpyrrolidone polymers, polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N- vinylimidazole, polyvinyloxazolidones and polyvinylimidazoles or mixtures thereof.
• compositions may contain less than about 5%, or from about 0.01% to about 3% of a chelant such as citrates; nitrogen-containing, P-free aminocarboxylates such as ethylenediamine disuccinate (EDDS), ethylenediaminetetraacetic acid (EDTA), and diethylene triamine pentaacetic acid (DTP A); aminophosphonates such as diethylenetriamine pentamethylenephosphonic acid and, ethylenediamine tetramethylenephosphonic acid; nitrogen- free phosphonates e.g., HEDP; and nitrogen or oxygen containing, P-free carboxylate-free chelants such as compounds of the general class of certain macrocyclic N-ligands such as those known for use in bleach catalyst systems.
• a chelant such as citrates
• nitrogen-containing, P-free aminocarboxylates such as ethylenediamine disuccinate (EDDS), ethylenediaminetetraacetic acid (EDTA), and diethylene triamine pentaacetic acid
• Brighteners may also comprise a brightener (also referred to as "optical brightener”) and may include any compound that exhibits fluorescence, including compounds that absorb UV light and reemit as "blue” visible light.
• useful brighteners include: derivatives of stilbene or 4,4'-diaminostilbene, biphenyl, five-membered heterocycles such as triazoles, pyrazolines, oxazoles, imidiazoles, etc., or six-membered heterocycles (coumarins, naphthalamide, s-triazine, etc.).
• Cationic, anionic, nonionic, amphoteric and zwitterionic brighteners can be used.
• Suitable brighteners include those commercially marketed under the trade name Tinopal-UNPA-GX® by Ciba Specialty Chemicals Corporation (High Point, NC).
• alkoxylated benzoic acids or salts thereof such as trimethoxy benzoic acid or a salt thereof (TMBA); zwitterionic and/or amphoteric surfactants; enzyme stabilizing systems; coating or encapsulating agent including polyvinylalcohol film or other suitable variations, carboxymethylcellulose, cellulose derivatives, starch, modified starch, sugars, PEG, waxes, or combinations thereof; soil release polymers; suds suppressors; dyes; colorants; salts such as sodium sulfate, calcium chloride, sodium chloride, magnesium chloride; photoactivators; hydrolyzable surfactants; preservatives; anti-oxidants; anti- shrinkage agents; other anti-wrinkle agents; germicides; fungicides; color speckles; colored beads, spheres or extrudates; sunscreens; fluorinated compounds; clays; pearlescent agents; luminescent agents or chemiluminescent agents; anti-corrosion and/or appliance protectant agents; alkoxylated be
• a concentrated fabric care potion that comprises a mixture of glycerol esters and a fabric softening active.
• the concentrated fabric care potion can be shipped safely from a remote facility to a new market safely and
• the concentrated fabric care potion may also be easily hydrated with low, if any, capital investment in the new market.
• the concentrated fabric care potion may also be hydrated to an effective single rinse fabric care composition.
• the concentrated fabric care potion consists essentially of or consists of a fabric softener active and a mixture of glycerol esters, wherein each glycerol ester in the mixture of glycerol esters has the structure of Formula I
• each R is independently selected from the group consisting of fatty acid ester moieties comprising carbon chains having a carbon chain length of from about 10 to about 22 carbon atoms; -OH; and combinations thereof;
• the concentrated fabric care potion generally comprises from about 1% to about 99%, alternatively from about 60% to about 98%, alternatively from about 75% to about 98%, of said fabric softening active by weight of the potion and from about 1% to about 99%, alternatively from about 60% to about 98%, alternatively from about 75% to about 98%, of said mixture of glycerol esters by weight of the composition.
• the concentrated fabric care potion is substantially free of water. In certain aspects, the concentrated fabric care potion comprises less than about 6% water, alternatively less than about 3% water, alternatively less than about 1% water. In another aspect, the concentrated fabric care potion is free or substantially free of adjunct ingredients. Non-limiting examples of an adjunct ingredient includes a perfume, dye, suds suppressor, or mixture thereof.
• Another aspect of the invention provides for a method of making a fabric softener composition comprising the step of adding water to a concentrated fabric care potion of the present invention. In one embodiment, the method further comprises the step of adding one or more adjunct ingredients. In one embodiment, the fabric softener composition is a single rinse fabric softener composition.
• the fabric care compositions of the present invention may be used to treat fabric by
• the compositions may be administered to a laundry washing machine during the rinse cycle or at the beginning of the wash cycle, typically during the rinse cycle.
• the fabric care compositions of the present invention may be used for handwashing as well as for soaking and/or pretreating fabrics.
• the fabric care composition may be in the form of a powder/granule, a bar, a pastille, foam, flakes, a liquid, a dispersible substrate, or as a coating on a dryer added fabric softener sheet.
• the composition may be administered to the washing machine as a unit dose or dispensed from a container (e.g., dispensing cap) containing multiple doses.
• a container e.g., dispensing cap
• An example of a unit dose is a composition encased in a water soluble polyvinylalcohol film.
• Hydrofol 20 fatty acid available from Evonik Industries
• 670 g of glycerol and 69 g of /? «ra-toluenesulfonic acid monohydrate are heated, under reduced pressure to remove water, for 16 hours at 120°C, yielding an off-white solid.
• CTMAC cetyl trimethylammonium chloride
• Non-ionic surfactant such as TWEEN 20TM or TAE80 (tallow ethoxylated alcohol, with average degree of

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• 2011
  • 2011-12-01 US US13/308,579 patent/US8603961B2/en active Active
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  • 2011-12-01 WO PCT/US2011/062748 patent/WO2012075212A1/en active Application Filing
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